RADIO COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD

摘要

A radio communication system comprises: user equipment; a plurality of base stations including a first base station that can execute the radio resource control of the user equipment and a second base station that does not execute the radio resource control of the user equipment; a gateway apparatus; and an exchange station that controls a user plane path. When the exchange station determines that a user plane path established via the second base station should be released, the exchange station transmits a non-access layer message, which instructs the release of the user plane path, to the user equipment via a control plane path established between the first base station and the user equipment.